MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2
SHA3-384 hash: 067114e713ef1521925e895bf4d6f669e2a7f124bc6c36b1dac4b38d28fbe0be6a9674ce3e5907fc3df77a2ab073a3ec
SHA1 hash: 7af093f13992e56e9fcb649fdc7a682caa1a58cc
MD5 hash: 7131f068a733b551e8950a7ad4dfe2de
humanhash: winter-sink-paris-dakota
File name:XOjonViZQlpsL8C.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:700'416 bytes
First seen:2023-10-22 07:15:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:dmKxt7s92w/c3z87ojZN5wjJF2gtt4clk8GW4+DDvDFw3c+ozNKxAL:dFt7s92Tuol2Jhttvlk8GW4+Dus+oz4G
Threatray 17 similar samples on MalwareBazaar
TLSH T1B5E4125632E99A23C73A5FBCCD616520A2F26C2A5C16D68BCDC132DE12CFB740611BD7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00f0f0d4cc69b244 (10 x AgentTesla, 9 x Formbook, 3 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
288
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
XOjonViZQlpsL8C.exe
Verdict:
Malicious activity
Analysis date:
2023-10-22 07:54:07 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/96773160-d65a-4db2-83c4-37754928c070

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2431.22808.9729.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6534cc3e2c931cd07e1a29a3/reports/5797d694-5f1c-42fc-8c29-9f8243482513/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/00b2509c-8d1b-43b4-bf90-348c26a0d2de
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1329899
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1329899 Sample: XOjonViZQlpsL8C.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 52 Malicious sample detected (through community Yara rule) 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 6 other signatures 2->58 9 XOjonViZQlpsL8C.exe 7 2->9         started        13 YVliinxqvi.exe 5 2->13         started        process3 file4 48 C:\Users\user\AppData\...\YVliinxqvi.exe, PE32 9->48 dropped 50 C:\Users\user\AppData\Local\...\tmp8A3F.tmp, XML 9->50 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 9->64 66 Adds a directory exclusion to Windows Defender 9->66 68 Injects a PE file into a foreign processes 9->68 15 XOjonViZQlpsL8C.exe 9->15         started        18 powershell.exe 23 9->18         started        20 schtasks.exe 1 9->20         started        70 Multi AV Scanner detection for dropped file 13->70 72 Machine Learning detection for dropped file 13->72 22 YVliinxqvi.exe 13->22         started        24 schtasks.exe 1 13->24         started        26 YVliinxqvi.exe 13->26         started        signatures5 process6 signatures7 74 Maps a DLL or memory area into another process 15->74 76 Queues an APC in another process (thread injection) 15->76 28 HiIjXuxlqkFh.exe 15->28 injected 30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 HiIjXuxlqkFh.exe 22->34 injected 37 conhost.exe 24->37         started        process8 signatures9 39 raserver.exe 28->39         started        60 Maps a DLL or memory area into another process 34->60 42 netsh.exe 34->42         started        process10 signatures11 62 Maps a DLL or memory area into another process 39->62 44 explorer.exe 2 1 39->44 injected 46 HiIjXuxlqkFh.exe 39->46 injected process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2023-10-06 07:56:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ht3vruwi2utyzfdjav5ie5luy3gfvl2vr4pbort2gqo5d2xda2ra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
1bcb883e07a0964b44b67c239b2134ee98d93a5df3bb0e7cb4c027d1373614a9
Formbook
541d7866b5be3211823382c2f1de6bfb40e3830e7c442764f69075ba923d7d9a
Formbook
988ed9d6f58307ca4d5d42471240d5fbc37f31b5bc0e1007869ffc22f12571b2
Formbook
a915e631517c5b9eadd5062e2c12d33521950a2650d56e69f60ed0d783f35345
Formbook
ac10fa3a6b7cfc8385aba614ca8f0da49fe6b0cb6f1b939ec0f0046ecf80ca64
Formbook
bec11f72190fee7497bb36abda739c26f56e0717bf3856f16559b30ec7ff29d9
Formbook
c8827b3385b4cfc8e31913a78e7e108ffeaa2cad099ccc49d4cb2c26edc5a910
Formbook
ed2a0e70294cc8ad10831275b462e430c5e0cea5525fbbadcf786bd81b11440c
Formbook
+ 7 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231022-h3thmadh81/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
440816a4f57741c002ef09584cf891cad468150dd687b2981347f31d5d85e884
MD5 hash:
bf3377a7c12bedb46bc81f9ed496c938
SHA1 hash:
aa0bbc44f4d4fc73a11d106b833f80142a167793
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
SH256 hash:
ec4f59024c89138e664ca64b46af6a88f68398b7285175890383ee22de0b2467
MD5 hash:
188a34a6c4246c56359c5d2a50a2774b
SHA1 hash:
2b70f0af307946d5a8638d365e671c03c19450e2
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
SH256 hash:
2c4b78db208e8ff5a0d599082ca7457c1f237b4c238e9bd5404732e186e21848
MD5 hash:
408e95f6490a5f1a350e70b951f688d1
SHA1 hash:
a61aa9a6630fe5bc52da78b78f06782419675e65
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
SH256 hash:
3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2
MD5 hash:
7131f068a733b551e8950a7ad4dfe2de
SHA1 hash:
7af093f13992e56e9fcb649fdc7a682caa1a58cc
Link:
https://www.unpac.me/results/deca3c61-f063-4f09-bd8b-2f9ddcc561e1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3cf758d2c8d5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 3cf758d2c8d5278c9469057a827574c6cc5aaf558f1e17467a341dd1eae306a2

(this sample)

  
Delivery method
Distributed via e-mail attachment

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